org.apache.paimon.lookup

Interface LookupStoreFactory

All Known Implementing Classes:

HashLookupStoreFactory, SortLookupStoreFactory

public interface LookupStoreFactory

A key-value store for lookup, key-value store should be single binary file written once and ready to be used. This factory provide two interfaces:

• Writer: written once to prepare binary file.
• Reader: lookup value by key bytes.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	LookupStoreFactory.Context Context between writer and reader.

Method Summary

Modifier and Type	Method and Description
static java.util.function.Function<Long,BloomFilter.Builder>	bfGenerator(Options options)
static LookupStoreFactory	create(CoreOptions options, CacheManager cacheManager, Comparator<MemorySlice> keyComparator)
LookupStoreReader	createReader(File file, LookupStoreFactory.Context context)
LookupStoreWriter	createWriter(File file, BloomFilter.Builder bloomFilter)

Method Detail

createWriter

LookupStoreWriter createWriter(File file,
                               @Nullable
                               BloomFilter.Builder bloomFilter)
                        throws IOException

Throws:

IOException

createReader

LookupStoreReader createReader(File file,
                               LookupStoreFactory.Context context)
                        throws IOException

Throws:

IOException

bfGenerator

static java.util.function.Function<Long,BloomFilter.Builder> bfGenerator(Options options)

create

static LookupStoreFactory create(CoreOptions options,
                                 CacheManager cacheManager,
                                 Comparator<MemorySlice> keyComparator)